Bolster for spinning-frame spindles



(No Model.)

J. R. GRAY.

I BOIVISTER FOR SPINNING FRAME sPINDLESl No. 289,084.

Patented Nov. 27', 1883.

N. PETtfls Phowutm ur, Wanun. n. c.

Nirnn PATENT Fries.

JAMES B. GRAY, OF AYER, ASSIGNOR TO THE SAW'YER SPINDLE COMPANY, OF BOSTON. MASSACHUSETTS.

BOLSTER FOR SPINNING-FRAME SPINDLES.

SPECIFICATION forming part of Letters Patent No. 289,084, dated November 2'7,

Application filed June 8,1853. (No model.)

. Spindles; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, reference being had to the accompanying drawings, which constitute a partof this specification.

My invention relates to that form of bolster which is used in connection with that class of spindles commonly known as the Sawyer, in which the bolster-bearing is elevated or carried up within the lower end of a chambered bobbin, as shown in Patent No. 113,575, April 11, 1871, to J. H. Sawyer.

The object of my invention is to provide a better means of supplying oil to such elevated bolster-bearing, and aiso to cushion such bearing in order to reduce jar or vibration, and render it practicable to run the spindle at a much higher rate of speed than has been possible heretofore.

Referring to the accompanying drawings, Figure 1 is a central vertical sectional view of my improved bolster as applied to the bolsterrail of a spinningframe, the spindle A being shown in elevation; Fig. 2, alike view, showing a modification of my device; and Fig. 3, a plan of the bolster-bearing D and the upper part of the bolster-tube B, showing one method of restraining or looking the bolster-bearing to prevent its rotating with the spindle.

InFig. 1 the bolster-bearing D, instead of being rigidly attached to the bolster-tube B, as heretofore, is loosely supported thereon and allowed to move freely in all lateral directions, being positively restrained from rotating with the spindle A by means of the short projection 1 Fig. 3, which extends upward from the bolster-tube and enters the sloth, formed in the bearing D, the two being loosely fitted together in order to allow the bearing D to freely adjust itself in all lateral directions. The bolster-tube B takes no internal bearing on the spindle A, and is made of a less external diameter than heretofore, in order to receive a tubular wick or packing, G, of fibrous material,

which extends from the oil'reservoir g to the upper end of the bolster-bearing D, forming a continuous sleeve or jacket for both the bearing D and its supporting bolster-tube B. The

bearing D is perforated at intervals, as shown at (1 cl (1 cl, to admit oil to the spindle as it is drawn up from the reservoir g by the capillary operation of the tubular wick G. A thin metallic shell or sleeve, E, incloses the wick G,

closely fitting the same and serving as the lateral support of the bearing D. The shell E extends slightly above the bearing D, forming asmall reservoir, 6, around the spindle, to con tain any excess of oil which may accumulate at that point. stant and uniform supply of oil is carried to the bearing D, and the reservoir g being once filled no further attention is required for a considerable length of time, affording a great saving in the labor heretofore required to oil this class of bolsters. Further, it will be seen that the bearing D is doubly cushioned-that is, the bearing is cushioned within the supporting-shell E by the wick or packing O, and

the shell E is also cushioned about the supporting-tube B by the same wick. Conse quently all jar or vibration of the frame is prevented from communicating to the spindle, and the spindle is enabled to yield laterally when spinning, and thus accommodate itself to an unequally-distributed bobbin-load, all

of which operations combine to admit of a marked increase of speed without vibration.

In Fig. 2 is shown a modification of my device, in which the bearing D is attached to the 8 5 supporting-shell E, the tubular wick G ex tending upward to the lower end of the hearing D, but not sleeving it, as in Fig. 1, an open space, r, being left between the bolster-tube B and bearing D, which allows the upper edge of the wick to lap in against the spindle A and supply oil to the spindle at that point, from whence it is carried upward by the rotation of the spindle.

Having thus described myinvention, what I 9 5 claim is- 1. The combination, with a spinning-spindle, of an elevated bolster-tube loosely fitting said spindle, a bolster-bearing loosely sup ported upon the bolster-tube, a tubular wick roo By this arrangement a con- 65 bearing is laterally sustained by a yielding 15 support, substantially as described.

3. The elevated bolster-tube B and the bolster-bearing D, combined with the tubular wick O, and outer supporting-shell, E, substantially as described.

In testimony whereof I have subscribed to this specification in the presence of two subscribing witnesses.

JAMES R. GRAY.

XVituesses:

W. N. CowLEs, E. D. STONE. 

